In this particular case they made a mistake and didn't realise the OAV existed until a fan asked whether it was ever coming on Twitter, but if they hadn't tripped up there they could well have managed to announce it before the US version started shipping, or ideally, before it went up for preorder in the first place, which makes it easier to consider their editions. MVM has done that with their Mayo Chiki acquisition so I haven't had to go straight into autopilot towards a potential foreign version, and Kaze has been good about this too.
In the short term, it wouldn't have helped for FMA as I don't buy region B blu-rays and also strongly dislike PAL conversions for the series I enjoy most, but if things improve over time it will hopefully coax me back to my own region again for blu-rays, at least. I'm still waiting for a really good reason to convince myself to buy a multiregion (i.e. region B capable) player, and there still hasn't been one. Hopefully Kaze's upcoming discs will be bug-free and do the trick.
Sadly, the quality control here is consistently poor. Hearing that the Hetalia movie has introduced an additional glitch the R1 didn't have is just the latest in a long list of reasons I'd currently prefer to import Manga UK titles even if our discs came out the very same day as in the US. The US companies play on this, because if I order the R1 Hetalia movie when it comes out, they give me special packaging and a bonus item. If I wait for Manga UK's, only to find out it's inferior, I might have missed out on the special version from the US and feel doubly cheated by Manga UK's mistake. It only takes a couple of frustrations to get people changing their buying patterns, as the abortion of the FMA Brotherhood blu-ray release made apparent.
Then there is also the feeling that my purchase counts for more in the US. If I buy xxxHolic and it doesn't sell enough copies in the US for Funimation to release any more, I feel sad but know I did the best I could. If I wait for Manga UK's version (as I did), Funimation's sells even fewer copies while my purchase from Manga UK achieved nothing in terms of getting more of the show brought over since Manga UK would never dub an obscure TV show themselves unless it sold on par with something like Naruto. I find that frustrating.
As an importer, for most shows it's not about waiting a few extra months for the UK versions that pushes me abroad so much as these other considerations, plus the annoyance factor of announcements coming after things have been ordered, paid for and shipped. I will almost never cancel an order once it's been placed, and I always order from the US the moment solicitations go up to help the first week sales figures.
Winning back importers is a complicated topic, and I'm not sure it's even that lucrative or worth their time. It's cheaper to have them spend a few hours on social networking sites to get a few more preorders in from the masses than to have an intern watch the discs they release to check them for bugs prior to mass production, it seems.
R